192kHz sampling rate problem

[Walkingman]

Hi!

I have a problem with REW 5.20 and using 192kHz sampling rate. When testing levels on Make a measurement panel meters show healty levels and REW says levels OK. When I start measuring signal levels disapear and after sweep REW says input level wasn't high enough. When I chance sampling rate to 48kHz everything works again normally. With 192kHz I can use RTA and signal generator normally but it seems that something is wrong with the measurement sweep.

192kHz has been working on previous versions but I can't remember on which one.

 

[John Mulcahy]

I'm assuming you are using ASIO drivers on Windows? What audio interface? Works OK for me using a UR22 mkII at 192k. Make sure the ASIO buffer size is set to a large value.

 

[Walkingman]

Yes, I'm using Win7 and ASIO. Sound card is Emu 1212. I tried max buffer settings (100ms) and it didn't make any difference.

 

[Walkingman]

BTW last time I made 192kHz measurements was 22. january 2018. Same setup. There has been some Win updates since then if it makes any difference.

 

[John Mulcahy]

Does it behave any differently if you don't do the check levels?

 

[Walkingman]

No it doesn't.

I noticed that I might get same king of behaviour with 96kHz every now and then but relaunching REW will cure that.

 

[John Mulcahy]

OK, thanks. I've made some changes to the way the generator operates before and during a measurement that may help, that will be in the next beta release.

 

[Walkingman]

Ok, thanks John!